How to replace all spaces delimited by a specific character?

G

ghostku2015-11-16 01:46:57

Python

ghostku, 2015-11-16 01:46:57

There is a piece of HTML document:

...
<img alt='fdsfsd' src='text1 text2'/>
adasd 
<img alt='sadsdd' src='text3 text4'/>
adasdas
...

You need to replace all spaces in the file path with an underscore and add the beginning of the path. The result should be.

...
<img alt='fdsfsd' src='CONST_text1_text2'/>
adasd 
<img alt='sadsdd' src='CONST_text3_text4'/>
adasdas
...

python language with standard re object

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1 answer(s)

N

nirvimel, 2015-11-16
@ghostku

You can't parse HTML with regular expressions .

import re
from lxml import etree
doc = \
    """
    <body>
    <img alt='fdsfsd' src='CONST text1 text2'/>
    adasd
    <img alt='sadsdd' src='CONST text3 text4'/>
    adasdas
    </body>
    """
tree = etree.fromstring(doc, parser=etree.HTMLParser())
for img in tree.xpath('//img[@src]'):
    img.attrib['src'] = re.sub(r'\s+', '_', img.attrib['src'])